1161441375 has 16 divisors (see below), whose sum is σ = 1932639072. Its totient is φ = 619435200.

The previous prime is 1161441371. The next prime is 1161441409. The reversal of 1161441375 is 5731441611.

It is not a de Polignac number, because 1161441375 - 2² = 1161441371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161441371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1548214 + ... + 1548963.

It is an arithmetic number, because the mean of its divisors is an integer number (120789942).

Almost surely, 2^1161441375 is an apocalyptic number.

1161441375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1161441375 is a deficient number, since it is larger than the sum of its proper divisors (771197697).

1161441375 is an equidigital number, since it uses as much as digits as its factorization.

1161441375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097195 (or 3097185 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 1161441375 is about 34079.9262763287. The cubic root of 1161441375 is about 1051.1525892105.

Adding to 1161441375 its reverse (5731441611), we get a palindrome (6892882986).

The spelling of 1161441375 in words is "one billion, one hundred sixty-one million, four hundred forty-one thousand, three hundred seventy-five".